Choosing the right waterproofing system can be a daunting task with the myriad of options available. However, when it comes to liquid applied membranes, one crucial element that should not be overlooked is reinforcement and the importance this plays. We explore why reinforcement is essential and how it can significantly impact the success of your project.
Why Reinforcement is a Must
Picture this: you apply a liquid waterproofing system, only to find it failing just a few months later. This frustrating scenario is more common than you might think, especially with products lacking proper reinforcement. Reinforcement, often in the form of polyester fleece or glass fibre mats, plays a pivotal role in boosting the durability of the membrane.
Here’s the crux: reinforcement adds tensile strength to the liquid membrane, allowing it to better handle structural movements and thermal fluctuations. This means the membrane can adjust to shifts and expansions in the substrate without cracking or failing. Without reinforcement, the membrane is more susceptible to stress at movement points, leading to potential damage.
Avoiding Common Mistakes
Some products may boast about their cost-effectiveness and quick installation, but often, these come without reinforcement. While such products might seem attractive, they may not be the best choice for long-term durability. It’s essential to check third-party accreditations to ensure the product meets your specific needs.
Reinforced systems are particularly beneficial in high-stress areas like upstands, cracks, and expansion joints. They also excel in “crack bridging”—a term that describes the system’s ability to handle cracks that develop after the initial application. A fully reinforced system is generally much stronger and more flexible, providing a better chance of managing any cracks that might appear.
Installation Considerations
When opting for a liquid waterproofing system, remember that installing an unreinforced product can lead to increased stress on the membrane, potentially impacting its longevity. Even if a crack isn’t present during installation, the system might still face issues over time. Some systems might recommend using reinforcing strips over problem areas, but this approach can be more costly and less effective than a comprehensive reinforcement layer.
Consistency in membrane thickness is critical for withstanding foot traffic and harsh weather conditions. Reinforcement ensures this consistency, contributing to the overall performance of the system.
When Reinforcement Isn’t Required
Not all liquid applied membranes need reinforcement. For instance, some highly specialised, fast-curing systems designed specifically for new builds or certain materials like metal sheets might not require it. In such cases, always consult the manufacturer’s guidelines to understand the product’s requirements and recommendations.
Quality Matters
Before choosing a liquid applied membrane, it is crucial to assess its quality. Look for manufacturers with third-party accredited quality management systems, such as ISO 9001, to ensure you’re getting a reliable product. Additionally, ensure that contractors are properly trained in the specific or similar systems they’re using. Clear application guidelines and training are key to successful installation.
Raising Industry Standards
As the market evolves, staying informed and making educated choices is more important than ever. With available tools and resources to help navigate the options, and a focus on training and quality, specifiers and contractors can ensure they select and apply the right liquid waterproofing solutions.
In summary, reinforcement is not just an added feature; it is a fundamental component of a durable and effective liquid applied membrane system. By understanding its importance and making informed decisions, you can avoid pitfalls and achieve lasting success with your waterproofing projects.
